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Good bye coil rail.

Dedicated forum for all things electrical... Sometimes Electrical issues can really get you stumped! Not Stroker related.
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SilverXJ
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Re: Good bye coil rail.

Post by SilverXJ » April 16th, 2015, 1:16 pm

Someone has to.

Moncheche
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Re: Good bye coil rail.

Post by Moncheche » May 5th, 2015, 9:48 am

I just installed a coil from a 2000 viper and the wires from a 3.3L caravan. Runs like a top. My old rail kept crapping out when it got warm. One of the best and easiest mods ever.

3losh07
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Re: Good bye coil rail.

Post by 3losh07 » August 20th, 2015, 6:04 am

jeepers which one is the right number for viper coil

UF412 or UF305

or both should work fine ? without damaging pcm ?

and what was your ideas of extending the length of connector ?

and if anyone has wires number that would be appreciated .

thanks

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darkcorp
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Re: Good bye coil rail.

Post by darkcorp » August 20th, 2015, 7:00 am

3losh07 wrote:jeepers which one is the right number for viper coil

UF412 or UF305

or both should work fine ? without damaging pcm ?
I use Coil Airtex 5C1432. Runs good.
3losh07 wrote: and what was your ideas of extending the length of connector ?
Just cut wires and extend them using solder.
3losh07 wrote:and if anyone has wires number that would be appreciated .

thanks
Depends on year 1999 or past.

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SilverXJ
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Re: Good bye coil rail.

Post by SilverXJ » August 20th, 2015, 8:06 am

3losh07 wrote:and if anyone has wires number that would be appreciated .
Numbers for what?

3losh07
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Re: Good bye coil rail.

Post by 3losh07 » August 20th, 2015, 9:48 am

darkcorp wrote:
3losh07 wrote:jeepers which one is the right number for viper coil

UF412 or UF305

or both should work fine ? without damaging pcm ?
I use Coil Airtex 5C1432. Runs good.
3losh07 wrote: and what was your ideas of extending the length of connector ?
Just cut wires and extend them using solder.
3losh07 wrote:and if anyone has wires number that would be appreciated .

thanks

Acutely i want to use a genuine coil instead of aftermarket
And my jeep is tj model 2000


Btw how does it work ? Worth to try ?

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Re: Good bye coil rail.

Post by 3losh07 » August 20th, 2015, 9:51 am

SilverXJ wrote:
3losh07 wrote:and if anyone has wires number that would be appreciated .
Numbers for what?
Part# of igintion wire , i feel like i would screw it up if i bought cut to lenght wires

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darkcorp
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Re: Good bye coil rail.

Post by darkcorp » August 20th, 2015, 9:51 pm

I run wires Tesla T139B from CHRYSLER GRAND VOYAGER III (GS).

Retlaw01XJ
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Re: Good bye coil rail.

Post by Retlaw01XJ » August 21st, 2015, 9:38 am

You can mount the coil on the firewall, no wiring extensions required!
I made a z-shaped bracket to mount the coil about 1" from the firewall to clear stuff. It uses existing firewall studs.
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Walt K
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Buick GS's and Saab turbos for other days...

jeepxj3
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Re: Good bye coil rail.

Post by jeepxj3 » August 21st, 2015, 3:07 pm

Retlaw01XJ wrote:You can mount the coil on the firewall, no wiring extensions required!
I made a z-shaped bracket to mount the coil about 1" from the firewall to clear stuff. It uses existing firewall studs.
You can use stock XJ plug wires with this?

Retlaw01XJ
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Re: Good bye coil rail.

Post by Retlaw01XJ » August 21st, 2015, 11:14 pm

jeepxj3 wrote:
You can use stock XJ plug wires with this?
I mean the plug for the coil rail (from wiring harness) will reach the replacement coil (on firewall) without having to lengthen the wiring harness wires.
I bought a universal spark plug wire set and cut each wire to length. My 2001 never had spark plug wires, no idea if an older XJ set will work.
Walt K
Eastern Pa
2001 Cherokee 4.6 stroker 90 day build
Buick GS's and Saab turbos for other days...

motomick76
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Re: Good bye coil rail.

Post by motomick76 » September 8th, 2015, 10:57 am

SilverXJ,

I have been spending extensive amount of time researching this, and want to thank you for your ingenuity on this. One last question before I pull the trigger on this, you have a 2000 XJ and I have a 2000 TJ. The connector from the wire harness to coil for your setup is straight-through, just extended. Then there is the 180 'flip' for some people. Who needs the flip, and who needs the straight-through? Are the XJ and TJ wired same?

Thanks again.

3losh07
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Re: Good bye coil rail.

Post by 3losh07 » July 28th, 2016, 11:56 pm

I need help

I have bought and installed viper igntion coil part# uf412 -B2918M
And jegs performance wires 40219 and i did the same as you guys installing 1&6 at the bottom, 2&5 middle and both flipped and non flipped 4&3 at top
The engine started but not smoothly
The problem here there is a lot if vibration that shake the car body with it and i have no clue what is the reason

Could be the wrong coil ? Or wrong wire ? Or bad pcm ?
It Can not be the spark plugs because i reused the coil rail and the engine started without problem

My jeep is 2000 tj 4.0l

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darkcorp
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Re: Good bye coil rail.

Post by darkcorp » July 29th, 2016, 4:52 am

I would check by disconnecting spark plugs one by one and finding therefore those that are wrong connected.

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SilverXJ
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Re: Good bye coil rail.

Post by SilverXJ » August 25th, 2016, 8:55 pm

motomick76 wrote:SilverXJ,

I have been spending extensive amount of time researching this, and want to thank you for your ingenuity on this. One last question before I pull the trigger on this, you have a 2000 XJ and I have a 2000 TJ. The connector from the wire harness to coil for your setup is straight-through, just extended. Then there is the 180 'flip' for some people. Who needs the flip, and who needs the straight-through? Are the XJ and TJ wired same?

Thanks again.
As far as I know the 99 WJ is the only one that needs the wires switched.

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